Gary Goofball has a rare 1813 gold $5 piece. He is standing by a well when Kathy Clutz bumps into him and the gold-piece
drops down the well. The well has a depth of 75 m. What was
the length of time for him to hear the slash made by the gold-
piece?

Ahorizontal wire is tied to supports at each end and vibrates in its second-overtone standing wave. the tension in the wire is 5.00 n, and the node-to-node distance in the standing wave is 6.28 cm. (a) what is the length of the wire? (b) a point at an anti- node of the standing wave on the wire travels from its maximum upward displacement to its maximum downward displacement in 8.40 ms. what is the wire's mass?

Which feature of a heating curve indicates a change ofn state

Students design a model roller-coaster track. they place a rubber ball at the highest point on the track and let it go. the ball rolls along the track pulled only by the force of gravity. eventually, it comes to a stop. which change to the design will result in the ball moving the greatest distance?